So I've recently decided that my instrument (violin) was very boring so I decided to try to learn the piano instead! I got myself a book called Alfred's Basic Adult Piano Course Level 1 or something like that and it came with a CD that has all the practice music and melodies from the book on it as reference. The thing is that I don't want to get another private tutor for the piano because I want to go at my own pace and not be assigned "homework" every week. I want to enjoy playing the instrument and I don't want it to become a chore (in fact, this is one of the reasons why I don't like playing the violin much anymore). So my question, for all you piano players out there, is whether or not this is possible to do (learn to play without a private tutor). I don't want to become a professional musician or anything like that but I do hope to be able to eventually play some of my favorite compositions (Chopin, Mozart, Beethoven, and the like). The thing that I'm worried about is my posture since that's not really something that can be learned from a book and may require some scrutiny from a tutor (even now, my violin tutor still points out the occasional mistake that I make in bowing or fingering that I was not even aware of).
Anyways, thank you in advance to anyone who replies!